The assumption that we have about characteristics and behaviour associated with "male" and "female" are called:
W
Gender practices
Gender bending
Gender equality
Gender stereotypes

very vague question but I would go with Gender stereotypes because it's an assumption. Normally when your assuming somthing about someone it's a steriotype like assuming a person is a mean because he is an athlete

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides